package com.springcloud.hystrix.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * Title: PaymentService
 * Description: TODO
 *
 * @author gejx
 * @version V1.0
 * @date 2021-12-29
 */
@Service
public class PaymentService {

    public String paymentInfo_ok(Integer id){
       return Thread.currentThread().getName()+"  paymentInfo_ok,id:"+id;
    }
    //异常之后的处理方案方法
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeoutHandler",//兜底方法
            commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",
                    value="3000")//设置3三秒的服务时间
    })
    public String paymentInfo_Timeout(Integer id){
//        int a=10/0;
          int Timeout=2;
       // int Timeout=5;
        try {
            TimeUnit.SECONDS.sleep(Timeout);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return Thread.currentThread().getName()+"  paymentInfo_Timeout,id:"+id+"耗时"+Timeout;
    }
    public String paymentInfo_TimeoutHandler(Integer id){
         return Thread.currentThread().getName()+"  paymentInfo_Timeout,id:"+id+"(＞人＜；)对不起请求超时";
    }
    //=========服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期，时间范围
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),//失败率达到多少断开
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id)
    {
        if(id < 0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }

}
